The Mashable infographic accounted for 7 percent of news links shared via Twitter, and it was followed by: two other items, also with 7 percent apiece — the Jobs biography, and a TechCrunch post on PayPal cofounder Peter Theil’s thoughts on higher education; the post-earthquake crisis in Japan, at 6 percent; and a Mashable item about social media and journalism, at 5 percent.

The Walter Isaacson-penned Jobs book, due out in 2012, accounted for 31 percent of news links shared by bloggers, followed by: the economy at 23 percent; a clip of Research in Motion CEO Mike Lazaridis abruptly ending an interview when asked about the company’s security problems, at 15 percent; the CIA’s new policy of de-emphasizing detention of terror subjects captured abroad, at 8 percent; and an accidental U.S. attack on a convoy of civilians in Afghanistan, at 4 percent.

The Egyptian soccer chaos was followed on the list of the most-watched news and politics video on YouTube by: a satirical ad criticizing President Barack Obama from the National Republican Senatorial Committee; a dog found alive at sea three weeks after the Japanese tsunami; footage of WikiLeaks founder Julian Assange dancing in a nightclub; and reporter Rodrigo Lemes interviewing a man known as the Thief Cara de Pau in Uberlandia, Brazil (in Portuguese).

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